Background: Formaldehyde, a widely used chemical, is considered a human carcinogen. We report the results of a meta-Analyses of studies on the relationship between occupational exposure to formaldehyde and risk of non-Hodgkin lymphoma (NHL). Methods: We performed a systematic review and meta-Analysis according to international guidelines and we identified 12 reports of occupational populations exposed to formaldehyde. We evaluated inter-study heterogeneity and we applied a random effects model. We conducted a cumulative meta-Analysis and a meta-Analysis according to estimated average exposure of each study population. Results: The meta-Analysis resulted in a summary relative risk (RR) for NHL of 0.93 (95% confidence interval 0.83-1.04). The cumulative meta-Analysis suggests that higher RRs were detected in studies published before 1986, while studies available after 1986 did not show an association. No differences were found between different levels of occupational exposure. Conclusions Notwithstanding some limitations, the results of this meta-Analysis do not support the hypothesis of an association between occupational exposure to formaldehyde and risk of NHL.

Occupational exposure to formaldehyde and risk of non hodgkin lymphoma: A meta-Analysis

Catalani S.;Donato F.;Madeo E.;Apostoli P.;De Palma G.;Pira E.;
2019-01-01

Abstract

Background: Formaldehyde, a widely used chemical, is considered a human carcinogen. We report the results of a meta-Analyses of studies on the relationship between occupational exposure to formaldehyde and risk of non-Hodgkin lymphoma (NHL). Methods: We performed a systematic review and meta-Analysis according to international guidelines and we identified 12 reports of occupational populations exposed to formaldehyde. We evaluated inter-study heterogeneity and we applied a random effects model. We conducted a cumulative meta-Analysis and a meta-Analysis according to estimated average exposure of each study population. Results: The meta-Analysis resulted in a summary relative risk (RR) for NHL of 0.93 (95% confidence interval 0.83-1.04). The cumulative meta-Analysis suggests that higher RRs were detected in studies published before 1986, while studies available after 1986 did not show an association. No differences were found between different levels of occupational exposure. Conclusions Notwithstanding some limitations, the results of this meta-Analysis do not support the hypothesis of an association between occupational exposure to formaldehyde and risk of NHL.
File in questo prodotto:
File Dimensione Formato  
FORMALDEIDE E NHL.pdf

accesso aperto

Tipologia: Documento in Post-print
Licenza: Dominio pubblico
Dimensione 1.06 MB
Formato Adobe PDF
1.06 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11379/529100
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 3
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 7
social impact